The circle C C\,C has the equation x2+y2+2x−8y=8x^2 + y^2 + 2x - 8y = 8x2+y2+2x−8y=8
Find an equation of the tangent to the circle at the point (3,7)(3, 7)(3,7).
292 exam-style questions on Edexcel A Level Maths Circles, covering 6.1 Midpoints and Perpendicular Bisectors, 6.2 Equation of a Circle, 6.3 Intersections of Straight Lines and Circles, 6.4 Use Tangent and Chord Properties, and 6.5 Circles and Triangles. Each one has a worked solution and a mark scheme showing where the marks go.